{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "239002939",
    "entityType": "Track",
    "nonce": "0x008f1d5dc41c97b0b8b1fd1dfadc8fe6714963c4660895ad570222405cb38b0f",
    "signature": "0xf7dbcdebab0bf8ca0cc918c751b25bf64f2e7c31610948116172b50ac651e76c6cac5aef7321d3e146beadf0cec82e441d8c4ce51aff730593adc41b137512ad1b",
    "signer": "0x0cb200c8ECc1B7eD14d56Ca8e073989646dACA78",
    "userId": "713531453"
  }
}